The TVQC model proposed in [1]} clearly resembles the paradigm of classical block fading [2]}. This occurs because the stochastic processes that define the dynamic behaviour of the relaxation and dephasing times are considered to be constant for the codeword length, since the processing times are much smaller than the coherence times of such processes [1]}, [4]}. Also, it is considered that all qubits in the codeword are affected equally by the noise [1]}. This is reminiscent of classical block fading scenarios in which the channel gain, \(h\) , is considered to be constant for the codeword length [2]}. We use this connection with the classical domain to develop the information theoretical concepts for TVQCs.
